thanks for the reply guys. yes I do have the three removed. I'll try and rotate the plate.

If that doesnt work, my original question was probably not written properly. I purchased some of those screw extractor bits. They are like reverse drill bits. The instructions say to hammer in to get it to bite then unscrew them out. The idea is that they should bite into the screw. I'm wondering if I need to go with the smallest one or the biggest one I can fit in there. I know I can try both but I dont want to start small or big only to find out I'm making the problem worse.
thanks for your replies..

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1985 300d Turbo Diesel